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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.reference.dispatch.overload2"></a><a class="link" href="overload2.html" title="dispatch (2 of 3 overloads)">dispatch (2 of 3
        overloads)</a>
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<p>
          Submits a completion token or function object for execution.
        </p>
<pre class="programlisting">template&lt;
    typename <a class="link" href="../Executor1.html" title="Executor requirements">Executor</a>,
    typename CompletionToken&gt;
<a class="link" href="../asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> dispatch(
    const Executor &amp; ex,
    CompletionToken &amp;&amp; token,
    typename enable_if&lt; is_executor&lt; Executor &gt;::value &gt;::type *  = 0);
</pre>
<p>
          This function submits an object for execution using the specified executor.
          The function object is queued for execution, and is never called from the
          current thread prior to returning from <code class="computeroutput">dispatch()</code>.
        </p>
<p>
          This function has the following effects:
        </p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
              Constructs a function object handler of type <code class="computeroutput">Handler</code>,
              initialized with <code class="computeroutput">handler(forward&lt;CompletionToken&gt;(token))</code>.
            </li>
<li class="listitem">
              Constructs an object <code class="computeroutput">result</code> of type <code class="computeroutput">async_result&lt;Handler&gt;</code>,
              initializing the object as <code class="computeroutput">result(handler)</code>.
            </li>
<li class="listitem">
              Obtains the handler's associated executor object <code class="computeroutput">ex1</code> by
              performing <code class="computeroutput">get_associated_executor(handler)</code>.
            </li>
<li class="listitem">
              Creates a work object <code class="computeroutput">w</code> by performing <code class="computeroutput">make_work(ex1)</code>.
            </li>
<li class="listitem">
              Obtains the handler's associated allocator object <code class="computeroutput">alloc</code>
              by performing <code class="computeroutput">get_associated_allocator(handler)</code>.
            </li>
<li class="listitem">
              Constructs a function object <code class="computeroutput">f</code> with a function call operator
              that performs <code class="computeroutput">ex1.dispatch(std::move(handler), alloc)</code>
              followed by <code class="computeroutput">w.reset()</code>.
            </li>
<li class="listitem">
              Performs <code class="computeroutput">Executor(ex).dispatch(std::move(f), alloc)</code>.
            </li>
<li class="listitem">
              Returns <code class="computeroutput">result.get()</code>.
            </li>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2003-2018 Christopher M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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